Membrane Perturbation Elicits an IRF3-Dependent, Interferon-Independent Antiviral Response Academic Article uri icon

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abstract

  • We previously found that enveloped virus binding and penetration are necessary to initiate an interferon-independent, IRF3-mediated antiviral response. To investigate whether membrane perturbations that accompany membrane fusion-dependent enveloped-virus entry are necessary and sufficient for antiviral-state induction, we utilized a reovirus fusion-associated small transmembrane (FAST) protein. Membrane disturbances during FAST protein-mediated fusion, in the absence of additional innate immune response triggers, are sufficient to elicit interferon-stimulated gene induction and establishment of an antiviral state. Using sensors of membrane disruption to activate an IRF3-dependent, interferon-independent antiviral state may provide cells with a rapid, broad-spectrum innate immune response to enveloped-virus infections.

authors

  • Noyce, RS
  • Taylor, K
  • Ciechonska, M
  • Collins, SE
  • Duncan, R
  • Mossman, Karen

publication date

  • October 15, 2011